Drilldown: Patents

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Patents > Filing date: December 1917 & Grant date: 1920 & Number of claims: 1-3

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Year filed:
(There are no values for this filter)
Year granted:
(There are no values for this filter)
Office:
AT (1) · FR (1) · GB (1) · HU (2) · US (3)
Inventors:
None (2) · Arthur R. Lyons (1) · Detlev Zickler (1) · Émile Letord (1) · Gianni Caproni (1) · Ira L. Sloan (1) · James H. Beldin (1)
Inventor country:
DE (3) · FR (1) · IT (1) · US (3)
Inventor location:
None (6) · Iowa (1) · Oregon (1)
Applicant person:
None (2) · Arthur R. Lyons (1) · Detlev Zickler (1) · Émile Letord (1) · Gianni Caproni (1) · Ira L. Sloan (1) · James H. Beldin (1)
Applicant firm:
None (6) · Gesellschaft für Apparatenbau A. R. Ahrent und P. Heylandt G.m.b.H. (2)
Applicant type:
COMPANY (2) · INDIV (6)
Applicant is inventor:
None (1) · No (1) · Yes (6)
Tech fields:
aerodynamics (1) · airplane (1) · ascension (1) · Bombing (1) · cables (1) · design (1) · flying machine (1) · HTA (1) · Industry (1) · lift (1) · Military (1) · propeller (2) · propellers (1) · Safety (1) · sustentation (1) · tail (1) · VTOL (1) · wings (1) · wood (1)
Filing date:
December 1, 1917 (1) · December 4, 1917 (1) · December 6, 1917 (1) · December 14, 1917 (1) · December 15, 1917 (1) · December 19, 1917 (1) · December 27, 1917 (1) · December 28, 1917 (1)
Full specification filed date:
None (8)
Application number:
None (3) · 1860417 (1) · 20494117 (1) · 20585717 (1) · 20931517 (1) · 503981D (1)
Grant date:
January 1920 (1) · February 1920 (1) · March 1920 (1) · May 1920 (1) · July 1920 (2) · August 1920 (2)
Granted:
Yes (8)
Publication date:
June 1920 (2) · September 1920 (1) · June 1921 (1)
Supplementary to patent:
None (4) · Patent DE 1916-10-24 Gesellschaft für Apparatenbau A. R. Ahrent und P. Heylandt G.m.b.H. (1) · Patent DE 1916-12-01 Gesellschaft für Apparatenbau A. R. Ahrent és P. Heylandt G.m.b.H. (1) · Patent DE-1917-05-29-Detlev Zickler (1) · Patent IT-1916-07-14 (1)
Related to aircraft:
1 (5) · Yes (3)
Patent agent:
None (3) · J. Germain (1) · Marks & Clerk (1) · Richard Blevens (1) · Victor J. Evans (1) · W. Randolph, Jr. (1)
Assigned to:
None (8)
National tech categories:
None (3) · AT 78b (1) · HU V/h (2) · USPC 244/50 (1) · USPC 244/6 (1) · USPC 416/168R (1) · USPC 416/210R (1) · USPC 52/DIG.6 (1)
IPCs:
None (3) · IPC B64C11/36 (2) · IPC B64C13/00 (1) · IPC B64C29/00 (1) · IPC B64C3/00 (1)
CPCs:
None (3) · CPC B64C11/36 (2) · CPC B64C13/00 (1) · CPC B64C2700/6235 (1) · CPC B64C2700/6256 (1) · CPC B64C29/00 (1) · CPC B64C3/00 (1) · CPC Y10S52/06 (1)
Family year:
(There are no values for this filter)
First filing:
None (1) · No (3) · Yes (4)
Cites these patents:
None (8)
Citations from after 1930:
None (2) · 1 (1)
Number of text pages:
1 (1) · 2 (4) · 3 (3)
Number of claims:
1 (4) · 2 (1) · 3 (3)
Number of diagram pages:
None (1) · 1 (5) · 2 (2)
Number of figures:
None (1) · 1 (1) · 2 (1) · 3 (2) · 6 (2) · 9 (1)

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